This Cheesy Ground Beef and Rice Casserole is always a hit. It's a family favorite comfort meal, and a simple one dish recipe that can't be beat!
Preheat the oven to 350°F, spray a 9x13 baking dish with cooking spray and set aside.
In a dutch oven or large skillet with deep sides over medium heat, add the ground beef and onions. Break up the beef into crumbles, stirring often until there is no pink left, and the onions have softened about 10 minutes.
Add the garlic, cook for 30 seconds until fragrant, and take off the heat.
Stir in the cream of celery soup, beef stock, garlic powder, onion powder, Italian seasoning, paprika, salt, and pepper.
Add the instant rice and mixed veggies and stir to combine. Add the mixture to the prepared baking dish.
Top with the cheese and cover with nonstick foil. Bake for 45 minutes until bubbly and the cheese is melted.
Uncover and place under the broiler to lightly brown the cheese. Add fresh parsley if using for garnish and serve.